str includes php

1$myString = 'Hello Bob how are you?';
2if (strpos($myString, 'Bob') !== false) {
3    echo "My string contains Bob";
4}

1if(preg_match('(bad|naughty)', $data) === 1) { } 

1<?php
2$string = 'The lazy fox jumped over the fence';
3
4if (str_contains($string, '')) {
5    echo "Checking the existence of an empty string will always return true";
6}
7
8if (str_contains($string, 'lazy')) {
9    echo "The string 'lazy' was found in the string\n";
10}
11
12if (str_contains($string, 'Lazy')) {
13    echo 'The string "Lazy" was found in the string';
14} else {
15    echo '"Lazy" was not found because the case does not match';
16}
17
18# Checking the existence of the empty string will always return true
19# The string 'lazy' was found in the string
20# "Lazy" was not found because the case does not match